Gr 4–6—Exciting shots of speeding vehicles and athletes performing gravity-defying tricks will attract readers to these well-crafted books. With one or two paragraphs per page, the volumes use well-labeled photos and fact boxes to provide overview of each sport. In-Line Skating relates that the sport developed as a way for hockey players to practice on paved roads during the summer off-season and includes a photo of gold medal-winning coach Herb Brooks with a group of skaters. Women and girls compete just as avidly as their male counterparts in these challenging sports, as seen in the photo of champion motocross racer Chiara Fontanesi. Glossaries help readers distinguish between whoops (hills on BMX racetracks) and rollers (hills on snowboard cross tracks). Browsers drawn by the colorful photos will come away with a surprising amount of information from these well-written introductions.